Table 2.
Biomass (mg dry weight plant–1), total nitrogen, phosphorus, potassium, calcium, and magnesium contents (µmol plant–1) and ABA contents (pmol plant–1) and their increments in pea plants (control and inoculated by V. paradoxus 5C-2) at the beginning and end of the study period 10 d and 16 d after transplanting, ~6 and 12 d after inoculation.
| Internodes 1–4 and leaves | Internodes 5–7 and leaves | Roots | Control | V. paradoxus 5C-2 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Control | V. paradoxus 5C-2 | Control | V. paradoxus 5C-2 | Control | V. paradoxus 5C-2 | ||||
| Biomass | Harvest 1 | 109±3.23 | 123±5.27* | 25.3±3.40 | 36.1±1.18* | 84.5±3.03 | 87.2±4.31 | ||
| Harvest 2 | 121±3.90 | 139±4.43* | 143±7.65 | 165±5.95* | 143±5.47 | 172±5.53* | |||
| Increment | 12±1.82 | 16±1.41 | 118±3.78 | 129±3.79 | 58.5±3.06 | 85±3.25** | |||
| Total N | Harvest 1 | 517±15 | 520±23 | 147±20 | 189±6 | 425±15 | 421±21 | ||
| Harvest 2 | 508±16 | 542±17 | 702±37 | 747±27 | 636±24 | 719±23* | |||
| Increment | –9±3.51 | 22±9.47 | 556±20.1 | 558±17.5 | 211±10.9 | 298±11.1** | |||
| Uptake of N by roots | 758±87.9 | 878±30.3 | |||||||
| P | Harvest 1 | 15.3±0.45 | 15.5±0.65 | 8.23±1.11 | 10.1±0.33 | 12.3±0.44 | 13.6±0.67 | ||
| Harvest 2 | 10.3±0.33 | 15.1±0.45* | 24.1±1.27 | 26.2±0.95 | 13.6±0.52 | 20.0±0.64* | |||
| Increment | –5±0.17 | –0.4±0.4** | 15.9±0.16 | 16.1±0.52 | 1.3±0.22 | 6.4±0.32** | |||
| Uptake of P by roots | 12.2±2.85 | 22.1±0.91* | |||||||
| K | Harvest 1 | 65.1±1.94 | 72.4±2.98 | 16.8±2.22 | 22.8±0.74* | 71.0±2.55 | 103±5.08* | ||
| Harvest 2 | 85.8±2.82 | 165±5.00* | 143±7.84 | 166±5.90* | 182±6.97 | 254±8.14* | |||
| Increment | 21±0.88 | 93±3.18** | 126±5.45 | 143±3.94* | 111±4.42 | 151±4.49** | |||
| Uptake of K by roots | 258±18.0 | 387±9.67** | |||||||
| Ca | Harvest 1 | 22.9±0.68 | 23.1±1.01 | 2.47±0.33 | 3.38±0.11* | 8.96±0.32 | 9.59±0.47 | ||
| Harvest 2 | 31.4±1.00 | 45.1±1.41* | 31.9±1.70 | 35.1±1.26 | 16.7±0.64 | 22.7±0.73* | |||
| Increment | 8.5±0.39 | 22±0.64** | 29.5±1.34 | 31.7±0.95 | 7.7±0.33 | 13.1±0.39** | |||
| Uptake of Ca by roots | 45.7±3.37 | 66.8±1.74 | |||||||
| Mg | Harvest 1 | 12.4±0.37 | 12.1±0.51 | 2.23±0.30 | 2.81±0.09 | 3.66±0.13 | 3.59±0.18 | ||
| Harvest 2 | 13.3±0.43 | 19.5±0.59* | 16.2±0.87 | 17.4±0.62 | 8.36±0.32 | 12.5±0.40* | |||
| Increment | 0.9±0.12 | 7.4±0.27** | 13.9±0.54 | 14.5±0.42 | 4.7±0.19 | 8.9±0.26** | |||
| Uptake of Mg by roots | 19.5±1.69 | 30.8±0.82** | |||||||
| ABA | Harvest 1 | 39.4±1.20 | 60.4±2.78* | 12.0±1.65 | 19.4±0.66* | 29.6±1.06 | 28.4±1.40 | ||
| Harvest 2 | 33.3±1.05 | 31.8±1.04 | 53.2±2.84 | 56.1±2.02 | 59.1±2.26 | 41.7±1.34* | |||
| Increment | –6±0.42 | –29±1.61** | 41±1.56 | 37±1.54* | 29±1.27 | 13±0.49** | |||
Data are shown as means ±SE; n=11–12.
Asterisks indicate significant (*P < 0.05) and highly significant (**P < 0.01) differences between inoculated and control plants.